Automatic inkwell



Patented Apr. 20, 1926.

j UNITED STATES Laster? EMRY DAVIS, OF NEW'YORK, Y;

AUTOMATIC INKWELL.

Application filed July 13, 1925. ySerial No. 43,144.

To all whom 'it may concern.' l

Be it known that I, EMRY DAVIS, a citizen of the United States, and residingat New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Automatic Inkwells, of which the following is a specification, such as will enable those skilled in the art to which it appertains to make and use the same.

This invention relates to inkwells or stands which are automatic in operation or which are so constructed as to provide f or the automatic feeding of ink to a pen point insertable thereinto, and the object of the invention is to provide a device of the class specified the ink feeding normally projects into a recessin the head `or top portion of the device and yet is retained in position below the top face of said head whereby the angular insertion of a peil into 'the inkwell is facilitated, and whereby ink may be fed to the pen point when the pen is `in such angular position without inconvenience to the operator; a still further object being to provide an ink feed control valve or nozzle which by reason of its construction will prevent sudden discharge of the ink through the feed device and yet provide for an even and positive feed of ink j to a pen point of a pen inserted thereinto;

a further object being to provide improved means for feeding ink from the well to said control device whereby the feed of ink is positive at all times, said ink feed control device also functioning as a seal for closing the end of the feed tube which opens into the well proper;

' and with these and other objects in view the invention consists in a device of the class and for the purpose specified whichis slmple in construction and operation and efficient in use, and which is constructed as hereinafter described and claimed.

The invention isfully disclosed in the following specification, of which the 'accompanying drawing forms a part, 1n which the separate parts of my improvement are de signated by suitable reference characters 1n each of the views, and in which Fig. 1 is la transverse sectional view through an inkwell made according to my invention and illustrating the method of its use. j

lzig. 2 is a Section on the line 2-,2 of Fig. 1; t Y

plunger of which Fig. 1A of the drawing.

t Fig. 3 is a perspectivedetail view of an ink feed and control devicewhich I, einploy ing only a part Aof the construction on an enlarged scale andv illustrating a modification; and, l

Fig. 4 is a view similar to Fig.` 1 but show- Fig. 5 a Seai0n0nthe1ine 5,-5 of Figif In carrying my invention linto eect, l provide a well 10 of any conventional shape or formand preferably composed of glass,

the topbeing provided with van opening `11 in which is fitted a sleeve-likecap 12 ,be-f tween which and the walls ofthe opening 11 is a suitable packing 13 tov renderthe conknection of the cap 12 with the well 10 lair- -ftight Frictionally retained anddetachably mounted in the cap 12 is a ,sleeve 14,"the up-A per .end of which is flared outwardly as seen at 15 and is provided with a convex recess 16 in. itsupper face, the other end portion 17 lof said sleeve projects intothe chamber 18 of the well 1() to a predetermined point adjacent the bottom. thereof, which pointY controls the required height of the ink .tobe maintained in the well for discharge therefrom in the use of the "device,

The above described constructionV isiold in the art and isI illustratedjforshowing one method of Carrying `my presenty invention into effect, andit will be notedrthat a vent passage 19 opens into the bore of the sleeve 14 and also into the chamber 18. Movably mounted within the bore of the sleeve 14 is an ink feeding plunger 2O in the form ofy an elongated tubular body havingv a cross;

head 21 at its upper end from which extends a` depending tube 22 within which is formed i the ink feeding bore 23 ofthe device, the tube 22 is contained centrally within the tube of plunger 20 and a chamber 24 is formed around the tube 22 in which is mounted a light coil spring 25 which nor.-

mally sits upon the cross head of a tubularV member 26, the depending walls of which are vprovided with slots 27 on oppositely disposed faces to permit thefree passage of tubular pins 28 therethrough, the pins 28 being mounted in the tubularv plunger 20 and thetube 22 thereof as clearly seen in It willl be noted that bular pins 28 open into the chamber 18 of 'thewall and also into the bore 23 of the tube the bores of the tu` of ink upwardly through the bore 23 as will v f be a parent.

. Til

e spring normally operates to nproject the crosshead 21 of the tubular ink feed member 20 above vthe bore of the sleeve 14 andthe top `of saidmember 2O is within the recess 16 and does not project above the top of the flared head 15 as seen in .dotted lines `in Fig. 1 of the drawing. tion of the pen ,or pen point into'the bore 23 in the plunger 2O and moving said plunger 2O downwardly, the ink is forced upwardly through the 'bore '23 'bythe action of said plunger member 20 and the ink is supplied to the pen as seen in Fig. 1 of the drawing,

and it will also be apparentthat by reason ofthe projection of the plunger 20a pen may be 'inserted angularly into said plunger vwithout engaging the flared head 15 as 'in-*v the successful operation yof the device, the

dicated in dotted lines in 1 of the drawing, and without in any way kaffecting the operation of supplying ink to the pen which result has lbeen experienced with other devicesof the lclass under consideration. `It will also be apparent that by virture of the spiralgroovesfl in the ink feed and control member 29, the sudden 'inertia of the ink upwardly through the bore 33 ina sudden pressure vof the plunger 2O -is obviated or checked and a constant or steady feed or supply of ink is provided. It will also be apparent that the plunger 201nay be depressed to a greater V.degree than the depression shown in full lines'in 1 of the drawing, and that part of .the ink which passes upwardly around `the member 20 and within the bore of the sleeve 12 and which may over- Yliow over the top of the member 20 in the upward or return of the member `20 to normal position, will either pass down ythrough the vent 19 or through the passage provided between said member by reason of the vent employed. f

Instead of providing the -tubularpins 28 i as shown in Figs; 1 and 2 of the drawing, I may provide a single tubular pin'34 as seen in Figs. 4and 5 of the drawing, and with ythis construction it is preferred that the lower end of the tube 22 be enlarged as seen at 35 and the diameter of the tubular pin 34 will be greater than 'that of the pins 28, and centrally of the pin 34 will be formed an aperture or passage 36 through which the memher29 is free to pass, the port '36 being ofthe same diameter as the diameter of the bore 23 and the head 30 ofthe member 29 Upon the inserwill extend `into'the bore 36 to lretain the pin 34 against displacement. With this construction .it will be apparent `that the ink will pass into and through the bore of .the pin 34 around the stem 33 of the member 29 and up through the grooves 31 and into the :bore 23,1the lower end of the bore 23 being closed by the head 30 as in the construction shown in'Figsgl anc-l2.

`In both formsof construction shown the pins l28 and the pin 34 projectA 'beyond the outer walls of the member 2() and form stops for limiting the upward movement -of said member by engagement with zthe lower or inner end portion of the sleeve 14, as will be a-pparent on a consideration of F ig. 1 ofthe drawing. f

Heretofore it has been a difficulty in :the use of 'ink-wells of :thefclassunder considerat-ion and especially in cleaning out such wells for their further use in properlypositioning the feed tubes andl other feeding means for controlling the supply `of inlrito the depending plunger or the bore of such plunger and Vsuch devices have not lbeen fool-Eprbof. l-ith 'the kpresent construction, howevelgythe assen'iblage or disassemblage ofthe parts and their re-assemblage must4 always result in 'ing the member 29 must pass through the bore 36 and the head 30of the member 29 positively fixes the position of the pin 34,

'and by virtue of :these timprovements as wellas thek method of constructing, mounting and operating themember 20 results-1n a more practical, fool-proof and positively kfunctioning *inkwell of the automatic type'.

It will be understood that lwhile I have shown certains details;.of construction/for carrying my invention into effect, that I am not necessarily limited toV these details and various Ichanges therein and modifications thereof may be made, within the scope of the appended claims, wit-hout -departing from the spirit of my invent-ion or sacrificling its advantages.

It will be apparent that in the operation of the device-the ink flow is controlled and regulated primarily by fthe arrangement of the spiral grooves 31 in the member 29 and the pitch arrangement of these grooves to deflect the'inlr onto the" walls of the bore 23 20 constitutes the distinctive `features of my invention.

IIaving fully described my invention, what I claim as n-ew and desire to secure by Letters Patent, is

l. An automatic inkwell of the class described con'iprising a well body, a closure for said body, a tubular member detachably mounted in connection with said closure and frictionally retained in position, the upper end of said tubular member being provided with a recess, an ink feeding plunger movably disposed in said tubular member and the upper end portion of which normally projects into said recess at a point slightly below the top of said tubular member, means detachably mounted in connection with the lower end portion of said ink feeding plunger for controlling the feed of ink tliereinto and therethrough, said means being in fixed position, tensional means for normally holding the plunger in a raised position, and means inde pendent of said first named means for controlling the passage of inl; from the chamber of the well to said first named means and said plunger.

2. In an automatic inlrwell of the class described, the combination with the movable ink feeding plunger thereof, of an ink feed control device detachably mounted in connection with said plunger, said device comprising a pin-like body one end of which is provided with an enlarged head and the other end of which is provided with spirally arranged grooves.

3. In an automatic inkwell of the class described, the combination with a movable ink feeding plunger thereof, of a tubular member transversing the feed bore of said plunge-r and an ink feed control devic-oi mounted in said feed bore and transversing said tube.

t. In an automatic inkwell of the class described, the combination with a movable ink feeding plunger thereof, of a tubular mem ber transversing the feed bore of said plunger and an ink feed control device mounted in said feed bore and-transversing said tube, said device serving to retain said tube in fixed position within said plunger.

5. In an automatic inkwell of the class described, the combination with a movable ink feeding plunger thereof, of a tubular member transversing the feed bore ofsaid plunger and an ink feed control device mounted in said feed bore and transversmg said tube, said device serving to retain said tube inV fixed position within said plunger, and controlling the supply of inkl to said device. *p

6. In an automatic inkwell'of vthe class described, the combination with a movable ink feeding plunger thereof, of a tubular member transversing the feed bore of said plunger and an ink feed control. device mounted in said feed bore and transversing said tube, said device serving to retain said Vtube in fixed position `within said plunger,

and controlling the supply of ink to said plunger having spirallyf arranged feed grooves for directing the ink feed through said plunger or the feed bore thereof against the walls of said bore.

7. In an automatic inkwell of the class described, an inkk feeding plunger having a feed tube, a plug for closing the end of said tube, said plug having within said tube a reduced portion and Spirally arranged feed grooves, and means comprising a tube mounted in connection with said plunger and opening into said feed tube adjacent the reduced portion of said plug whereby inlrmay be fed into said feed tube through said grooves.

8. In an automatic inkwell of the class described, an ink feeding plunger having a feed tube, and means detachably mounted in the lower end portion of the bore of said tube for controlling and regulating the feeding of ink thereinto, said means being in fixed position in said tube.`

9. In `an automatic inkwell of the class described, an ink feeding plunger having a feed tube, and means detachably mounted in the lower end `portion of the bore only of said tube for controlling and regulating the lower end portion of said tube. said means being in fixed position in said tube.

l0. In an automatic inkwell of-tbeclass described, an ink feeding plunger having a feed tube, means detachably mounted inthe lower end portion of the bore only of said tube for controlling and regulating the feeding of ink thereinto and for closing the lower end portion of said tube, said means being in fixed position in said tube, and means associated with said tube and said first named means for directing ink from the well to said means and said tube.

In testimony that I claim the foregoing as my invention I have signed my name this 10th day of July 1925.

EMRY Davis.

`the feeding of ink thereinto and for closing 

